FR2451655A1 - SYNCHRONOUS MOTOR CONTROL APPARATUS, ESPECIALLY FOR A GYROSCOPE - Google Patents
SYNCHRONOUS MOTOR CONTROL APPARATUS, ESPECIALLY FOR A GYROSCOPEInfo
- Publication number
- FR2451655A1 FR2451655A1 FR8005796A FR8005796A FR2451655A1 FR 2451655 A1 FR2451655 A1 FR 2451655A1 FR 8005796 A FR8005796 A FR 8005796A FR 8005796 A FR8005796 A FR 8005796A FR 2451655 A1 FR2451655 A1 FR 2451655A1
- Authority
- FR
- France
- Prior art keywords
- spindle
- control apparatus
- gyroscope
- speed
- motor control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/907—Specific control circuit element or device
- Y10S388/911—Phase locked loop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/907—Specific control circuit element or device
- Y10S388/912—Pulse or frequency counter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gyroscopes (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
L'INVENTION CONCERNE UN APPAREIL DE COMMANDE DE MOTEUR SYNCHRONE. ELLE SE RAPPORTE A UN MOTEUR D'ENTRAINEMENT D'UNE TOUPIE 50 D'UN GYROSCOPE DE PRECISION. CETTE TOUPIE 50 EST COMMANDEE PAR UN CIRCUIT ASSERVI A UNE VITESSE INFERIEURE A LA VITESSE DE SYNCHRONISME DU MOTEUR; UNE FREQUENCE DE REFERENCE, CREEE PAR UN GENERATEUR DE FREQUENCE DE ROTATION DE TOUPIE, EST SYNCHRONISEE SUR UNE REFERENCE DE FREQUENCE DE GRANDE STABILITE SI BIEN QUE LA VITESSE DE LA TOUPIE EST MAINTENUE AVEC PRECISION. LES POLES DE L'ANNEAU D'AIMANTATION DU MOTEUR TOURNENT CONSTAMMENT AUTOUR DE L'ANNEAU ET LEUR EFFET SUR LA POLARISATION MAGNETIQUE MOYENNE A UNE VALEUR MOYENNE NULLE. APPLICATION AUX GYROMETRES A SUSPENSION SOUPLE.THE INVENTION RELATES TO A SYNCHRONOUS MOTOR CONTROL APPARATUS. IT RELATES TO A DRIVE MOTOR OF A SPINDLE 50 OF A PRECISION GYROSCOPE. THIS SPINDLE MOULDER 50 IS CONTROLLED BY A CIRCUIT SLACED TO A SPEED LOWER THAN THE SYNCHRONISM SPEED OF THE MOTOR; A REFERENCE FREQUENCY, CREATED BY A SPINDLE ROTATION FREQUENCY GENERATOR, IS SYNCHRONIZED ON A FREQUENCY REFERENCE OF HIGH STABILITY SO THAT THE SPEED OF THE SPINDLE MOULDER IS MAINTAINED WITH PRECISION. THE POLES OF THE MOTOR MAGNET RING CONSTANTLY ROTATE AROUND THE RING AND THEIR EFFECT ON THE AVERAGE MAGNETIC POLARIZATION HAS A ZERO AVERAGE VALUE. APPLICATION TO SOFT SUSPENSION GYROMETERS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/020,579 US4314188A (en) | 1979-03-15 | 1979-03-15 | Stable subsynchronous drive system for gyroscope rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2451655A1 true FR2451655A1 (en) | 1980-10-10 |
Family
ID=21799404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8005796A Withdrawn FR2451655A1 (en) | 1979-03-15 | 1980-03-14 | SYNCHRONOUS MOTOR CONTROL APPARATUS, ESPECIALLY FOR A GYROSCOPE |
Country Status (4)
Country | Link |
---|---|
US (1) | US4314188A (en) |
DE (1) | DE3010048A1 (en) |
FR (1) | FR2451655A1 (en) |
GB (1) | GB2046956B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2515447A1 (en) * | 1981-10-27 | 1983-04-29 | Smiths Industries Plc | CONTROL SYSTEM FOR A SYNCHRONOUS ELECTRIC MOTOR |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382217A (en) * | 1981-05-15 | 1983-05-03 | Gould Inc. | Starting control circuit for an A.C. motor |
EP0103028B1 (en) * | 1982-03-18 | 1986-09-03 | Sanyo Electric Co., Ltd | Speed control circuit for motor |
US4680515A (en) * | 1985-05-21 | 1987-07-14 | Crook James C | Digital speed control of motors |
US4837486A (en) * | 1986-07-17 | 1989-06-06 | Agfa-Gevaert N.V. | DC motor speed stabilizing method and apparatus |
US5313148A (en) * | 1992-08-21 | 1994-05-17 | Alliedsignal Inc. | Electronically commutated two-axis gyro control system |
US5321986A (en) * | 1992-08-21 | 1994-06-21 | Alliedsignal Inc. | Polar loop implementation for a two degree of freedom gyro |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3110853A (en) * | 1958-06-05 | 1963-11-12 | Westinghouse Electric Corp | Electrical control apparatus |
US3176208A (en) * | 1962-07-02 | 1965-03-30 | North American Aviation Inc | Phase locking control device |
US3206665A (en) * | 1962-12-19 | 1965-09-14 | Lear Siegler Inc | Digital speed controller |
US3331006A (en) * | 1964-03-13 | 1967-07-11 | Cutler Hammer Inc | Digital speed and position regulating motor control system |
JPS4620971Y1 (en) * | 1967-07-11 | 1971-07-20 | ||
US3495152A (en) * | 1968-03-01 | 1970-02-10 | Ampex | Reference signal servo system |
US3906319A (en) * | 1973-10-04 | 1975-09-16 | Lee J Milligan | Universal motor speed control system |
US3950682A (en) * | 1974-12-19 | 1976-04-13 | International Business Machines Corporation | Digital dc motor velocity control system |
GB1540997A (en) * | 1975-05-16 | 1979-02-21 | Euratom | Apparatus for controlling ac-motors |
FR2318530A1 (en) * | 1975-07-18 | 1977-02-11 | Gillonnier Julien | Precision ntrol of elelectrical machine speed - holds speed to within 0.2 per cent of set value using counting and anticoincidence circuit |
DE2744361A1 (en) * | 1977-10-01 | 1979-04-05 | Huebner Johannes | Motor speed control system - has tachogenerator pulse train frequency increased or reduced by fixed factor, so as to be equal to reference frequency |
US4250442A (en) * | 1979-10-04 | 1981-02-10 | Sperry Corporation | Stable synchronous drive system for gyroscope rotor |
-
1979
- 1979-03-15 US US06/020,579 patent/US4314188A/en not_active Expired - Lifetime
-
1980
- 1980-03-03 GB GB8007192A patent/GB2046956B/en not_active Expired
- 1980-03-14 FR FR8005796A patent/FR2451655A1/en not_active Withdrawn
- 1980-03-15 DE DE19803010048 patent/DE3010048A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2515447A1 (en) * | 1981-10-27 | 1983-04-29 | Smiths Industries Plc | CONTROL SYSTEM FOR A SYNCHRONOUS ELECTRIC MOTOR |
Also Published As
Publication number | Publication date |
---|---|
DE3010048A1 (en) | 1980-09-25 |
GB2046956B (en) | 1983-09-01 |
GB2046956A (en) | 1980-11-19 |
US4314188A (en) | 1982-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |